Ultra Heat GMV Multi VRF_Heat Recovery Serial
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Step 8: In progress 03, the quantity of modules needs to be confirmed manually. Main board will
display:
03_Confirm the
quantity of modules
If the quantity displayed is the same with actual quantity, then press SW4 confirmation button on the
master unit to confirm it. Unit will start next progress:
03_Confirm the
quantity of modules
If the quantity displayed is different from actual quantity, then disconnect power and check whether
communication wire among each module is correctly connected. After the check, start debugging again.
Step 9: In progress 04, the quantity of IDUs needs to be confirmed manually. Main board will
display:
04_Confirm the
quantity of IDUs
Quantity of
connected
IDUs
If the quantity displayed is the same with actual quantity, then press SW4 confirmation button on the
master unit to confirm it. Unit will start next progress:
04_Confirm the
quantity of IDUs
Step 10: Progress 05 is internal communication detection.
If no error is detected, system will display as below and then start next progress.
05_Internal
communication
detection
If error is detected, system will stay at current progress. Error has to be solved manually. Related
errors are:
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